Free Printable Genetics

Worksheets

Genetics

Total questions: 15

Worksheet time: 39mins

Name

Class

Date

What does a filled in square represent?

Not affected Female

Not affected Male

Affected Male

Affected Female

How many generations are shown in this pedigree?

What does an open circle represent?

Not Affected Male

Not Affected Female

Affected Male

Affected Female

How many people in this whole pedigree have the trait/disease?

What does a horizontal line between a square and a circle mean?

They are siblings

They are cousins

They are married ("together")

They are the children

If a trait SKIPS a generation, it is an indication that the trait is....

dominant

recessive

incompletely dominant

co-dominant

Is this trait (the shaded individuals) dominant or recessive?

dominant

recessive

Huntington's Disease is a dominant trait.

What is the correct genotype for individual I-2?

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?

100

10.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be black?

100

11.

What would the genotype be of a colorblind male?

X^NY

X^NYⁿ

XⁿY

XⁿYⁿ

12.

Which of the following genotypes belongs in the red box in the Punnett square?

X^BX^b

X^bX^b

X^bY

X^BY

13.

Colorblindness is a recessive X-linked disorder.

Which genotype represents a male with normal vision?

X^NY^N

XⁿYⁿ

X^NY

XⁿY

14.

What do we use pedigrees for?

To look at families

To make determinations about the offspring

To track traits in families

Nothing

15.

In cattle red coats are represented as RR, and white coats are represented as WW.

What is the genotype for Roan color?

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Genetics

Total questions: 15

Worksheet time: 39mins

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